Type-casting machine.



0. G. SCHMITT.

TYPE CASTING MACHINE.

APPLlCATION FILED DEC. 20. 1912.

1,1,7'73. Patented Nov. 16, 1915.

OTTO G. SCHMITT, OF CHICAGO, ILLINOIS, ASSIGNOR, BY DIRECT AND IVIESNE ASSIGN-j MENTS, T0 BARNHART BROS. & SPINIDLER, OF "IERSEYv CITY, NEW JERSEY, A COR- PORATION OF NEW JERSEY.

TYPE-GAS TING MACHINE.

Specification of Letters Patent.

Patented Nov. 16, 1915.

Application filed December 20, 1912. Serial No. 737,816.

To all whom it may concern.

Be it known that I, Or'ro G. SOI-IMITT, a subject of the Emperor of Germany, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new anduseful Improvementv in Type-Castin Machines, of which the following is a clear, concise, and exact description,

A further object resides inthe particular arrangement and combination of parts hereinafter described.

In the accompanying drawings 1 which form a part of the specification, Figure l is a front elevation of a portion of a type 'cast- 1 ing machine of the reciprocating ram type, showing my improvements, parts being removed; Fig. 2 is a view similar to Fig. 1, but showing the. parts in a different position; Fig. 3 is a vertical cross sectional view on the line 33 of Fig. 2, looking in the direction of the arrow.

. Throughout the separate viewsthe same part is referred to by the same reference character.

Referring more particularly to the draW- ings, 1 is a bed-plate'forming part of a frame provided with suitable supports, such 7 monly used in type casting machines, which is mounted to moveon the upper face of the plate 1 having sliding engagement with the guides H, which project upwardly from the plate 1. It will be understood that the ram 8 is reciprocated back and forth, as indicated by the double headed arrow in Figs. 1 and2, by any suitable means known in the metal from a suitable pump 3 is a reciprocating ram such as is com art. Since such means are well known in the art they are not shown in the drawing, but Wlll be understood. The ram 3 is recessed on its under face to receive a mold block 5 which slides with the ram on the upper face of the plate-l. Block 5 is provided with. two mold slots 6 and 7, wherein type may be cast.

8 is a matrix box carrying a matrix 9 (Fig. 3). Members 8 and 9 are shown diagrammatically and may be of any of the known forms which move back and forth in a fixed plane transversely of the path of movement of the ram. The position of the matrix box is indicated in Figs. 1 and 2 by dotted lines only, for purposesofclearer illustration of the mold block. The matrix box reciprocates back and forth as indicated by the double headed arrow in Fig. 3. Means for reciprocating the matrix box. in this manner being well known are not shown but will be understood.

The mold slots 6 and 7 are closed at the top by reciprocable plungers l0 and 11. Plungers 10 and 11 are carried in slots in pins 12 and 13 which project up through the top of the ram. The upper face of the ram is countersunk to receive springs 14 and 15 which throw upwardly against nuts 16 and 17 carried by pins 12 and 18, so that the nuts are normally carried up against the stops 18 and 19, which stops are screwed into the top of the ram. When the nuts are thus held up against the stops, the plungers 10 and 11 are lifted a distance equal to the thickness of a type. Plunger 10 is shown in this position in Figs. 1, 2 and 3.

20 is a nipple designed to lead molten type (not shown), to the slots 6 and 7. The nipple 20 is fixed in the same plane transversely of the ram as the matrix 9, so that metal will be delivered to cast a type in whichever one of the mold slots 6 and 7 is in position to register with the matrix 9.

21 is a vertical pin carried in a suitable in the art,

is adapted to be reciprocated vertically by means of a lever 23 which is pivoted on a standard 24 also supported from the plate 1. The lever 23 is pivotally connected at the end opposite the. pin 21-to a vertical rod 25 which is designed to be reciprocated longitudinallyof cam 26 carried on a revolving shaft 27. Nowv when the rod 25 is raised the'pin' 21is forced downwardly so that its lower end engages the top face of the ram. It will be understood that in type casting machines it is standard practiceto operate the ram by vmechanism which allows the ram to dwell or pause at each end of its stroke and that the type casting operation can be performed onlywhen the ram is stationary. 7 Consequently the cam 26 is timed so'that the pin 21 will be forced against the top of the ram during the pauses in the ram movement and the pin 21not only serves to prevent the escape of type metal along the face of the ram by pressing it against the bed-plate, but also serves to fix the position of the ram so that the slot 6 or 7 in which type is tobe cast will'necessarily register with the matrix. It willbe noted that the pin 21-carries two arms 28 and 29 which I project infopposite directions along the length of the ram. The arms 28 and 29 are provided with bosses 30- 30 at their extremities. Asclearly shownin Fig. 3, the arms '28 and '29 are curved sufficiently so 1 that the bosses 3O lie in the vertical plane determined by'the two pins 12 and 13. Now when the pin 21 is raised, the bosses 3O lie above the plane of the upper ends of the pins 12 and 13, but when the pin 21 descends one of the bosses 30 will contact with'the head of one of the pins 12 or 13, so as to force down one of the plates 10 or 11 to discharge type from the'mold slots in the mold block intothe type ways 3131.

It will be seen from the foregoing that the slots 6-. and 7 are spaced apart a distance equal to the travel or throw of the ram, and thatthe spread of the arms 28 and 29 taken together is equal to twice the travel of the ram. r

- It'will be understood that in practice suitable knives (not shownlwill be provided to trim the'type after it has been cast.

' In the operation of my type casting machine, type are cast alternately in the slots 6 and 7 If it be assumed that a type has already been cast in slot 7, then the slot 6 is in position to cast a type as shown in Fig. 1. Preparatory to casting a'type in slot 6, the pin 21 descends toclamp-the ram at the same time the boss 30 on the arm 29 contacts withthe topof the pin 13, forcing down-the plate 11 and forcing a type out of slot 7,

7 into the left-type-way 31. The position of i a typewhich has just been thus discharged is indicatedat 32in Fig: 1. At the'sametime the matrix box 8 is forced against the face of the ram and metal is forced in through the nipple 20. The parts then remain in this position while the type is cooling. Pin 21 then rises, allowing the pin 13 and plate 11 to rise until held by the stop 19, and the ram then travels to the position shown in Fig. 2. As soon as the ram stops the pin 21 again descends and the boss on the arm 28 causes the type just cast in the slot 6 to be ejected into the right hand typeway 31 in a manner similar to that just described. The position of such a type is indicated at 33. The matrix box is now brought up to engage the mold in register with the slot 7 the type is cast in slot 7, and the ram returns to the position shown in Fig. 1. This cycle of operation is then repeated indefinitely.

Having thus described my invention, what I claim is:

1. In a type casting machine in combination, a reciprocable ram, a mold block mounted to move with said ram provided with two mold slots, a matrix and means forregistering said matrix with each of said slots in turn.

2. In a type casting machine in combination, a reciprocable ram, a pair of type discharging plungers carried by said ram, a reciprocable pin mounted to move at right angles to the path of the ram, and means carriedby said pinfor operating first one and then the other ofsaid plungers.

3. In a type casting machine in combination, a reciprocable ram provided with a plurality of mold slots and a matrix arranged to cooperate with said slots, said ram being arranged by its reciprocation to place first one and then another of said mold slots in position to cooperate with said matrix.

4:- In a type casting machine in combination, a reciprocable ram, a mold block mounted to move with said ram provided with a pair of slots, reciprocable plates closing one side of'said slots, springs normally holding said'plates retracted in said slots, stops carried by the ram for limiting the action of said springs, and means for fore-- ing said plates outwardly in said slots.

5. In a type casting machine in combination, a reciprocable ram, a mold block mountedto move with said ram provided with a pair of slots, reciprocable plates closing one side of said slots, springs normally pin mounted to move at right angles to the my name this 29th day of November, A. D.,

path of the ram, a pair of arms carried by 1912. said pin, extending in opposite directions along said ram, and pins connected with OTTO SCHMITT' b said plates adapted to be operated by said Witnesses:

arms. A. S. DENNISON,

In witness whereof, I hereunto subscribe A. L. JONES.

Copies of this patent may he obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

